Type-writing machine.



W. J. NEIDIG. TYPE WRITING MACHINE. APPLICATION FILED DE(].13, 1909. I

Patented Feb. 18,1913.

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W. J. NEIDIG.

TYPE WRITING MACHINE.

APPLICATION FILED DEG.13, 1909.

Patented Feb. 18, 1913.

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-ll/ILLIAltt J. NAIDIG, 0F MADISON. WISCONSIN, ASSIGNOR, BY MESNE ASSIGNMENTS 'IO CHICAGO TITLE AND TRUST fllMPANY, TRUSTEE, A CORPORATION OF ILLINOIS.

TYPE-NBITING MACHINE.

Specification of Letters Patent.

rrteat a'reb. 18.1913).

Application filed Decemlier 13, 1909. Serial No. 532.928.

neric invention which is described and cl led in my co-pending application filed April 20. 1908. Serial ITo.

The objects of my invention are broadly to indicate to the operator by automatic means the position of his current line upon the sheet. either relativelv to one of the edges thereof or to other line positions.

The objects ol that form of my invention which is more specifically illustrated in the acconipaii -inn drawings. are first. to indicate to the operator the distance to the bot tom edge of his sheet from his current printing position. and this line by line and auto tnaticallv. irrespective of the length of the sheet. and beginning a considerable distance fr m the end of the sheet: second. to give the operator an improved preliminary. eye signal upon his nearing the end of the sheet, and this autmuaticall): third. to supply him with an improved signal. preterahlv an ear signal. upon the completion ot predeterininetllinc upon the sheet. automatically;

' tor further printing like a fourth. to render the machine inoperative hv improved means upon the completion of a predetcianined line upon the sheet. also. autoumticallv: fifth. to release the machine for further printing upon the removal of the COFPplOtHl sheet. aiuoinatically: sixth, to enable the operator to release the machine hetero the removalot the sheetheing prated. atwill 2 and seventh. to supply. certain means adimtecl to b. plied to other-paperinoveincnt-indi I 1; UL be same general character. N

no ogressive measuring ottlie are eft upon the paper-sheet. so that the ope. t4 iri' amt prcli inarv care on tell Whether he group or matter i111 ook alienhas room z-Ii'his she t for his part mg. t cannot well hedividecl. and thus stop page in ads-once of the predetermined pagedength it need he. has never hetore heen perforuuul. hut is novel to my in- .vention'.

"itillltlltl. oi tahle. or a chapter head- Fig. 2; Fig. 4 represents more or less diagraininatically in 'e'nd view a modification;

Fig. 5 is a front view in vertical section of a portion of Fig. 4. onthe line D; Fig. 6 an end view of another modification, shown more or less 'diagraminatically: F it. 7 is a front view in vertical cross-section of structure partly shown in Fig. 2-, Withcertain parts in a different operative position; Fig. 8 is an end view, with portions broken away. of a simplified modification, certain elements shown in the preceding figures being omitted and others receiving a different form; F ig. 9 is an illustration of a modification in form of the sheet-controlled extensible teeth I employ; Figs. 10 and 11 are diagramlnatical representations illustrative of the general principle of sheet-control shown herein; Fig. 12 is a front view of the modification shown in Fig. 8; Fig. 13 is a vertical cross-section of the same, on they line B B: Fig. 14- is a front view of a tie-- tail of Fig. 8. partly in section on the line C C; Fig. 15 is a' plan view. on an enlarged scale, of the parts which are shown in Fig. 1, omitting the type-bar; Fig. 16 is a view in section on line 16. 16. Fig. 15. looking in the direction indicated by the arrows.

The preferable form of my invention is that shown in Figs. 1. 2. 3, and 7, in which the platen carriage frame 12. carried upon the main frame it of the tvpewriting machine in the usual nmnner (see Fig. 8), has journaled in its ends the platen arbor 13 as shown, hearingtlic platen 10. which may be imagined as connected with the usual line spacing mechanism. not shown herein. The usual paper table 9 for the support ot lhe entering; sheet is shown, as are the paper guards or fingers 31 around the under side of the platen. all hciugat tached in the'usual way to the carriage frame 12. I show'rnv invmition as stationed.

atthe left-hand end of the platen. but ohviously it could be applied to the righthand end as well. Taking now this structure as a basis, I first prepare the left end of the platen for the addition of my mechanism by forming a circular recess therein deep enough to receive the Iaterally' -prQjecting hub or shoulder of the feeler-carrier 16 (Fig. 7). The head or disk of this feelercarrier 16 is constructed with a series of slideways or channels 18 radially arranged around the' inner .iace thereof as shown, and each having an elbow or outwardly extending channel, the channels preferably corresponding in number to the number of teeth upon the line-space ratchet-wheel, the purpose of the elbow-channel being'to receive one of the loosely sliding pieces28 with its elbow arm :11. The pieces 28 constitute feelers or detectors as hereinafter explained. The purpose of the inwardly-projecting hub of the feelercarrier 16 is to serve as structrim upon which to fasten light springs 51, by. means of pins 100. The free end of a spring 51. is carried into a channel 48, and

made tofengage with the piece 28 in such channel in such a manner thatthe spring will tend to move the piece 28 lightly radially outward as shown in Fig. 7. I make the head of the teeter-carrier 16 of the same diameter as the platen, or smaller, and the length of the piece 28 such that when moved inward against the resistance of the spring the outer end of the said piece will lie flush with the peri heral surface of the platen. or slightly be ow it. Between the head of the feeler-carrier 16 and the end of the platen I place the washer 4:9, to sup ly a fourth side to the channel -18 and retain the piece '28 therein. the Washer being suitablynotched adjacent its central opening, for the play of spring 51. The several arts are held in position against the en of the platen by means of screws 52, Figs. 2 and 7, passing through the hub of feeler-carrier 16, and said parts turn as a unit with the platen on the arbor l3.

As will be perceived, I have attached to the end of the platen a circular series of feelers or detectors which latter, respectively, are depressible at a touch, they reyolving in a plane adjacent to the edge of the printing surface on the platen, so that the paper sheet will overlap upon them; and connected tooth by tooth with the feelers or detectors of this series I have what is in effect a toothed wheel projecting laterally from the outer face of the feeler-carrier 16, formed of the ends of the elbow projections 11. These projecting ends or teeth 11' are encircled by the annular guide-piece 17, which is supplied with an inside cam-surface 50 (Figs. 1 and 16) adapted to act controllingly upon the said ends 11, and through them control the radial position of the feelers or detectors 28. This guide-piece is furnished with supporting structure consisting of the slotted ears 36, 37, Figs. 1

and 16, the slots 38 in the ears being adaptmaterial.

ed to settle down over the supporting pins 39 projecting inwardly from the carriage frame 12. The loosely revolving drum (3 is mounted upon the platen arbor and held in a suitable lateral position bymeans of bushings 4:2 upon said arbor at opposite sides of the central portion of the said drum. The inner side-face of the drum is -cored out. as shown in Fig. 2, so that. the

teeth 11 may project'within the contour of the drum. This drum is supplied with means acting rotatlvely upon it 111 such a manner that when released from engagement it will be returned to a constant po sit-ion of rest. which may be designated its initial or starting position. the specific means preferred being theweight Fig. 1. added to the drum near its periphery, though the precise means employed is not The drum is also supplied with an interior projection 11, so shaped and sta- ,tioned -that when the teeth 11 are in their retracted position it does not lie in their path, but when they are moved out toward the periphery of the drum by the force of ravity, or the action of the springs 51, or

0 both. it does lie in their path andis engaged by them as the platen is rotated. I prefer to give the said projection the angular shape as shown, in order that it may sustain only 5 a one way engagement with the teeth 11. but its precise sha-peis not material. I prefer to use a single projection or tooth for this duty. but. do not necessarily limit my-- self thereto. The periphery of the drum 6 10 I supply with indices and other markings as described later. I also provide the pointer or index-indicator 34. Figs. 1, and 15. preferably attaching it by means of the rivets to the-earBG of the annular part 17 before mentioned. in such position that the operator may conveniently use it.

The action of the structure thus far de scribed is as follows :Sheet 15 is entered into the machine in usual manner. the upper incline 50' of the tooth-controlling campiece 17 acting, as the platen is rotated by hand. to retract the feelers or detectors 2S. and the rear portion of such cam-piece holding them retracted quite out of the way ot the entering end of the sheet. The cam-1ncline 50' permits the feelers or detectors to move outward again. As the platen is rotated, the tooth 11 of the extended feeler or detector which is next behind tooth 14 of laten and drum press the the sheet itselfwhasheld in retracted position such of the feelers 28 as have been permitted to rest thereon by cam-piece. 11. Drum 6 is thus rendered free to be rotated by weight thereon into its constant initial position as illustrated in Fig. 1, with the arbitrary symbol shown at 89 before pointer In this position the. drum remains until the bottom end of the sheet passes upon the platen and some of the feelers 28 are no longer retracted by the sheet. Eventually that tooth 11 which is connected with the first feeler lying beyond the end of the sheet engages upon project-ion 1 t, drum 6 is moved forward, and thes'ymbe] marked 89 is replaced by indice's. Since projection ll sustains a fixed relation to the drum bearing it, and is engaged by a tooth having a fixed relation to the end of the sheet, any peripheral point upon drum 6 will likewise have a fixed relation to the end of the sheet and may be. supplied with an index indicating such relation. That is to say, if the end of the sheet is ten single line spaces from the printing point after the first. advance of the drum, the peripheral portion of the drum then before the pointer may be marked 10.. as in Fig 3, and the new portion of the drum moved into indicating position with the succeeding line-space advance of the sheet may be marked 9, and so on down to 1. Such is the series of indices 6 of the drawings (Fig. 3). I prefer to use numerals in descending order, indicating the full distanceto the end of the sheet in single-line units, but the kind, order, form, number and position of the indices are not materiahnor is the unit of measurement employed, nor need the full distance to the sheet-end necessarilybe indicated.

The means whereby I supply the operator with a visual signal to notify him of the approach of the end of the sheet are described as follows: I divide the periphery of the drum 6 into two portions, the one, marked 6", in Fig. 8, lying uppermost during the major progress of the sheet, and the other, marked 6*, coming into the sight of the operator only when the end of the sheet approaches within a constant distance of the printing point. By coloring these two peripheral sections in striking contrast one to the other, as, say, the 6 section black, and the section white, and by extending the pointer 34 in the form of a shield over the white section so as to conceal it during the time previous to the connecting of the drum 6 with the platen, 2'. 1 so long as the drum 6 remains in normal position, or in other words in its constant position of rest, I am able to attract the operators eye before he reaches the predetermined last line upon his page and thus warn him of the position of his sheet, the striking change from black to white being sufiicient to do this. Other colorings or other markings could be employed for the purpose, and they need not be peripheral. supply the operator with additional indicating means as follows: First, I furnish him with a signal to warn him when he has reached his predetermined last-line position, so that he need notlose time in tryingto write further upon the sheet, and after that I render the machine inoperative, so that if he neglects to observe the last-line signal he will still'be prevented from over-running his page upon his bottom margin, except by intention. The last-line signal I prefer to be an audible signal given by a bell, and the means whereby itis given are described thus: Upon the end 12 of the carriage frame is added frame extension 22 by means of bolt 64. Frame extension 22 carries outwardly projecting pin 86 bearing bell 27; and it carries also, journaled therein, the short v axle having fixedly attached thereto upon the inner end the trip-lever 69, and upon the outer end two pieces, the inner one being the loosely fitted hammer-stein 72 having. an exten' sion with the pin 71 outwardly projecting therefrom, and the other being the fixedly attached lug-piece 101 adapted to engage againstthe said pin 71. In Fig. 1 the end 12 of the carriage frame is partly broken away,

as is also bell 27, to show these parts more clearly. Trip-lever 69 projects into the path of a pin 20, Figs. 1 and 2, stationed near the periphery of drum 6, and is operated thereby at a predetermined moment. Convenient adjusting means are these: Drum 6 isgsupplied with" a series of threaded holes 9, stationed at line-space intervals-apart, into any of which the pin 20 may be screwed.

The purpose of lug-piece 101 and-pin 71 engaged thereby is to permitof a backing-up movement of the pin 20. Hammer-stemf72 bears hammer 26, preferably operative with in the bell as shown. the bell signal to begiven, pin20 presses against lever 69, depressing it, thus rocking shaft 70- together with lug-piece 101,

and through the engagement of said lugpiece w th pin 71 raising hammer 26 within the bell. Pin 20 then passes on, lever 69 is released, and bell-hammer 26 falls againstthe bell, causing it to sound.

The means whereby I render the machinev inoperative are described thus: Upon the end 12 of the vcarriage frame I place the inwardly projecting pin 24, shown at the right-hand side in Fig. 1, having journaled When it is time for thereon the end 18 of the rocking bail-piece 29. This bail-piece extends the entire length of the platen and lies parallel to the axis thereof; and its further end is journaled similarly upon a pin in the farther end of the carriage frame 12, these parts being similar in form to the parts shown. The end 18 bears the inwardly projecting pin 23, upon which one end of the connecting rod 420 is journaled. The end 12 of the carriage frame bears also the inwardly-projecting pin 7. near the left in Fig. 1, upon which is hung first the loosely journaled arm 4, and second the loosely journaled trip-lever 1. lpon trip-lever l is a lug 2 bearing upon a pin 3 upon the said arm' in such a manner that when the tripdever is depressed the arm is rocked, but when the trip-lever is raised the arm is not acted upon, the purpose of this construction being to permit of a backing-up movement of the pin 20. Arm -f bears also the inwardly-projecting pin 83, upon which is journaled the other end of the connecting rod 40 before mentioned. Trip-lever 1 is so stationed that it projects into the. path of pin 20,, preferably 7 leather.

in a different vertical plane from that of the lever 69. I show also, in Fig. 1, but somewhat diagrammatically, typerbars 78, hav

' ing the usualaxis at 81 and the usual type 73. When it is time for the machine to be rendered inoperative, pin 20, pressing downwardly'upon trip-lever 1, through arm 4 and connecting rod 40 rocks bail-piece 29 upwardi'n the are 46 into the path 47 taken by the printing type 73. If now the operator attempts to print an additional line he is unable to do so, for-the type strike upon the bail-piece 29 and do not meet the paper. The bail-piece would preferably be faced xo1j covered with a yielding material like The operator thereupon removes his sheet, the pin 20 passes on, the lever 1 is released. and thebail-piece falls. rendering the ihachine again operative. If, following the rocking of the bail-piece 29 up into its blocking position, the operator desires to print an additional line upon his sheet, he, has only to turn the platen forward far enough to free pin 20 from trip-lever 1, and then backward to the required position, andhis machine is released for further printing to any extent.

I do not regard my invention as limited to any precise form'of indicating means, nor to any precise type thereof. but prefer to employ the several cooperating forms and types described.

In the embodiments of' my invention shown in Figs. 4 and 5, the indices are carried upon a sliding standard, and not upon a rotary member. In this modification I use the sheet controlled feelers or detectors already described, together with their controlling and supportingstructure, including the cam-piece 17, indicating the same diagrammatically; but instead ofthe weighted drum 6' with its tooth 14 I use structure described as follows: I attach to shaft or arbor 21, upon the outer end of which is fixedly attached the pinion 53, and

. upon the inner end the toothed wheel 5, the.

said wheel 5' being so stationed that it is engaged by the teeth 11 when in their extended position, hnt'not engaged by them when they are in their retracted position. The frame extension 22 is ,also. supplied with a slide-way, preferablyvertical, for the play of standard 6, the face of which is supplied above the..indices 6 and below with ,teeth forming' a rack to mesh with the pinion 53". A lip 102 with which the upper end of the standard is furnished serves as a stop to limit the downward movementof the standard. The standard is also supplied with the outwardly projecting pin 20, and the extreme lower portion 54 of the rack is Without teeth. The frame extension 22 carries the outwardly pro jecting pin 86 bearing the bell 27, and the, outwardly projecting pin upon which are journaled the trip-lever 69 and the tends to swing upwardly againstthe rim;

of the bell 27. 18 as follows: The sheet 45 1s introduced lnto the machine as before, and maintains the feelers or detectors 28, and therefore the teeth 11. in their retracted position, as before; but after the sheet has passed, the feelers or detectors 28 are no longer held retracted by itbut move into their extended position, as shown. Meanwhile standard (3 has fallen by the force of gravity into its position of rest, since wheel 5 is free of engagementwith teeth 11 during the major progress of the sheet, which permits the movement. \Vhen the first of the extended teeth 11 comes into engagement with the wheel- 5, therefore. the indices stand at 0. the movement of the wheel 5 by the actin of said extended teeth will raise standard 6. bringing thereby the first succeeding index (as 12, Fig. 5) into View. and each additional movement forward of the platen will thereafter raise the standard 6 a little higher, bringing line by line other indices into view, the symbol in each case indicating the distance at that moment existing between the printing pointand the bottom edge of the sheet, as before, up to the very end. And as before the trip-levee 69 will be operated by the pin 20 so as to strike the bell upon the completion of a-predetermined.

The action of these parts ment, the indices in this case being carried frame 12 has attached to it by means of screws 84 the frame extension 82, in which is journaled shaft 21, bearing upon its inner end the fixedly attached wheel 5 and upon its outer end the drum 6 also fixedly attached thereto. A shield-pointer 34, at-

- tached to frame extension 82, is shaped like that shown in 3 and has the same func tions. The bell-striking mechanism is also essentially the sameas that before described, except that it may'here be attached directly to the carriage frame --1-2,-and it is actuated by the pin carried by drum 6. The embodiment illustrates how sheet--controlled teeth may be made to act upon a toothed wheel instead of upon a, drum having a single projection or tooth.

An embodiment of my invention containing fewer elements is described as follows:

Fig. 8 is an end View of the platen and carriage frame of a front-strike typewrit ing' machine, the platen turning upon the arbor 13, which is journaled in the ends 12 of the carriage frame in the usual manner, and Fig. 13 is a front view of the same in cross-sec tion', on the line B B. Takin this structure as a basis. I attach to the end of the platen- 10 the circular piece 81 by means of the screws 52 4 Fitted over the periphery of this core-piece 81 is the annular piece 98 supplied with a series of radial holes or wells 48 the same corresponding in number and function to the channels 4E8 of my preceding figures. This annular piece 98 in turnfitted with the annular rim 97 supplied with smaller holes each centrally stationed over the wells 48 lVithin each chamber thus formedt -is placed the loosely fitting tooth or plunger-28 the head 99 of which is larger than the shank, constructed so for retaining purposes. The annular pieces 98 and 97 are so shaped that they will be held in position by a radial lip or flange at the outer edge of the core-piece 81, and the diameter of the whole is thesanre as thatot the platen, or smaller. It will be seen that. this constitutes'a platen head essentially like that described above, adapted to be overlapped by the paper sheet and supplied with extensible and retractible feelers or detectors constructed to act as teeth.

ing figures however I showthe feelersor .will not engage upon them even when In my prcred lever 62 has a dowinvardl extending portion 90 journaled upon which by means of the inwardly projecting pin 74: is the swingpiece 75". The lower portion of this swingpiece bears the inwardly projecting stop-pin 79 and the inwardly and outwardly projecting pin the inwardly projecting portion of the pin 70 having journaled thereon the trip-lever 69 and the outwardly projecting portion, the hammer-stem '72. the

two pieces being connected by the bail-pin 95 to rock as a unit. lVhenin the position shown in Fig. 8 both the stop pin 79 and the trip-lever 69 he adjacent to the periphery of the annular rim 97, so that they will be engaged by the teeth constituted by the outer portions of feelers or detectors 28 when the latter are extended but will not he engaged when the said feelers or detectors are held back by the paper sheet. And the swing-piece hearing these parts is pivoted, it will be seen that they can be swung away from the rim 97 until the tootlrportions of feelers or detectors 28 extended. The mechanism controlling the position of the swing'piece 75 consists of the releasing lever (37. which journaled upon the lever 62 by means of the pin (58, the

inwardly projecting pin 73 on the releasing lever, the inwardly projecting stop-pin 78 on the piece 90 to limitthe movements of the releasing lever, the inwardly projecting pin To on the upper portion of the swingpiece 75, and the connecting .bar 77 journaled at either end upon the pins 73 and to. A spring 91 connecting the pin {59 on the piece 90 and the pin 5-8 on the piece 77 serves to hold the parts in their operative position as shown, or in their secondary released position with the lever 67 pushed backward toward the paper table A second spring Ol connects the pin $72- on "the piece 75" with the pin 93 on the. hammer stem 72. thus tendlng to draw the bell haur 'mer 26 toward the platen a -b-or 13. upon which is stationed the hell 2?. The bell held in its lateral position by means otthe inner sleeve '3 and the usual. twirler ()0 at the end of the arbor 13. the twirler having an inner shoulder 32", Fig. 12, upon it. This portion olimy mechanism is completed by attaching to the carriage frame 12 the segment-rack til by means of the bolts (33, the LZ'!11(*lll-l'l-t'l( having); notchesalong its inner edge adopt-ml to re eive theedge of lllt iu'ljn iihg' lever lllinhich is preferably detectors 28 as pressed radially by very light j 11. The platen is released, as when entering edge of the entering sheet. renders the mechanlsm more completely operative. Thls piece is attaclmd thus: Upon the frame 12 is lacetjlf inwardly projecting pin 5?, Figs. 8 and l lf'havi'ng thereon the compressible (Oiled spring 58 and the loosely journaled iece ,-tho lower portion of the latter be enough under the platen to keep the pieces 28 from interfering with the entering sheet. In order to permit of a backing-up move-. ment I cutthe lower inner edge of the piece with a slant 59 so that if the tooth-portions o'f' feelers or detectors '28 are backed up against it they will strike upon the slant and pressthe piece to one side outwardly against the act-ion of the coiled spring 58 The piece 50 is returned by a reverse transverse movement to its'original position through the action ofa' fpring 58 The action'of this modificationtime that it overlaps upon the ends of the feelers or deLectors :28 holds them in aretracted position so that they do. not engage upon the trip-lever 69 or the stop-pin 79% but those feelers or detectors lying beyond the end ofthe sheet are not thus retracted, and when they come to these parts in their path act upon them, first ringing the .bell and then bringing the platen into a locked engagementagainst stop-pin 79 so that the machine, or a partthereof, is rendered inoperative. By using the adjustinglever '62 to bring the trip-lever 69 farther from or nearer to the printing point, the operator is able to adjust the mechanism so as to furnish a signal at any predetermined distance from the end of the sheet. The principle is illus trated diagrammatically in myFigs. 10 and the sheet, or for further printing, by throwing the releasing lever 67* forward toward the paper-table. The stop-pin 79 can of course be omitted, and the bell-signalused alone.

give a signal ata fixed distance from the end of the sheet. Furthermore, the retractable con loine feelers or I detectors and teeth not only in nus modification but in the other forms of the invention, although preferably of the plunger'type shown, sliding radially m channels, may take other forms, as for thus: The sheet 45 during the The adjusting mechanism can also be omitted, the mechanism being constructed to pending applications for Letters Patent lilwl by me. ,The said devices have a number (it general objects in common with those t'orming the subject matter of different. applications in the said series, and to a certain extent embody and utilize various principles and features shown and described in one or another of the said applications. Some of the said common principles and features are claimed broadly in my apphcation filed April 20, 1908, aforesaid, and in any applh cat-ion filed Dec. 15, 1909, Serial No. 533.309. T he branch of the general invention which is covered hereby'is distinguished by the characteristic features specified in the tollowing claims.

Having thus clearly explained the natureand objects of my invention, and the mannor of applying 1t, I claim as new and desire to secure by Letters Patent- 1. In a typewriting machine, in combination, a platen, a s'eriesfot sheet-controlled movable teeth moving simultaneously with the platen, and indicating means actuated by the said teeth and caused to indicate through the turning of the platen.

2. In a typewriting machine, in combination, a carriage, a platen, a series of sheetcontrolled movable teeth moving simultaneously-with theplaten, and indicating means on the said carriage to 'cotiperate with the said teeth and caused to indicate through the turning ofthe platen.

3. In a. typewriting machine, in'combina-- tion, a carriage,a platen, a series of sheetcontrolled retractable pro ections or teeth connected therewith, and indicating means on said carriage to cooperate with the said teeth and through the latter caused to indicate through the turning of the platen.

t. In-atypewrit-ing machine, in combination, a carriage, a platenya series of sheettions or teeth connected therewith, and ind cating means on said carriage to cooperate /Wltl1- the said teeth and. through the latter caused to indicate through the turning of the controlled spring-pressed retractable projecinoperative stages in their rotative movement, and indicating means. to cooperate with the said teeth.-

6. In a typewritingmachine, in combination, a platen, an operative member, means for giving 'said member a constantstarting.

position, indicating means calledinto opera tion through said member. and a series of sheet controlled retractable' projections or teeth adapted to operate-said member to move simultaneously with the platen fi om such position.

7. In a typewritingmachine, in combination, a platen, a series of sheet-controlled re-.

tractable projections or teeth connected therewith, a rotary member supplied with a 'weight to restore it to a constant starting posltion and adapted to be engaged by the said teeth, and indicating means called into operation through said member.

'8. In a typewriting machine, in combina tion, a platen, a series of sheet-controlled retractable pro 'ectlons or teeth connected therewith, and a-series of indices controlled by the said teeth.

10. In a typewriting machine, incombina tion, a platen, a series of sheet-controlled I'Q-j tractable pro ections or teeth connected therewith, and means controlled by the said teeth and through the latter operated. by the turn:

ing of the platen whereby a signal isgiven when the end of the sheet attains a predetermined distance from the printing point.

11. In a typewriting machine, in combina tion, typewriter mechanism including a platen, a series of sheet-controlled retractable projections or teeth connected with the platen, and means controlled by the said teeth and through the latter operated by the tnrning of the platen to render apart or parts of said mechanism inoperative when the end of the sheet attains a predetermined distance from the printing pointI 12. In a typewriting machine, in combina-.

-tion, typewriter mechanism including a through said member.

plat-en, a series of sheet-controlled retractable projections or teeth connected with the platen, and means controlled by the said teeth to render a part or parts of said mechanism inoperative when the end of the sheet attains a, predetermined distance from the printing point, and adapted to be operated toautomatically release themachine for further -use.

18. In a typewriting machine, incombination, a platen, a/ series of sheet-controlled retractable projections or teeth connected therewith, an operative member ope'r'atively controlled by the said teeth and having a constant starting or initial position, and a series of indices called into operation 14,-. Ina'typewriting machine, in combination, a platen, a series of sheet-controlled retractable projections or teeth connected therewith, an operative member operatively cont-rolled by the said teeth and having a constant starting or initial position, and

predetermeans called int0, operation throughflsaid I ember to' give a signal when the end of the- ,s ieet attains a predet-m'mined distance'tlrom the printing-point, I

' 15. In a typewrit-ing machine, in combination, typewriter mechanism including a plate-n, a series of sheet-controlled retractable projections or teeth connected with the platen, an operative member operatively controlled by said teeth and having a constant starting or initial position, and means cperatively relatedwith said operative mem-' her to render a part or parts of said mechanism inoperative when the end of the sheet attains a predetermined distance from the printing point.

16. In a typewriting tion, typewriter mechanism includinga platen, a series ofsheet-controlled retractable projections or teeth connected with the platen, an operative member operatively' controlled by the said teeth and having a constant starting or. initialposition, and neans controlled by the operative member to render a part or parts of said mechanism machine,in combiner inoperative-and adapted to release the same through continued rotation of said member.

17. In a typewriting machine, in combination, aplaten, aseries of projections or teeth moving in unison with the platen and having in operation a retracted position and an extended position for each tooth, a second 4 series of projections or teeth connected with the'first series of teeth and having an operative, and an inoperative position, and indi eating means with which said second series f of projections or teeth coac'ts. 18, In a typewritin'g machine, in combination, a platen, indicating means, a series of individually retractable sheet-controlledv platen-connected projections or teeth operatively related with said means, and means position, ,to permit of free sheet insertion; i

19, In a typewritingmachine, in combination, a platen, an indicator, and sheet-controlledmeans including a plurality of inde-' for holding said projections or teeth in their retracted pendentlv movable paper-feelers for cotirdinating the position of the indicator With the position of the sheet, said means giving the indicator a constant startingposition and platen from such position. '20.. In a typewriting machine, in nation, a platen, a rotary member, means combi-- giving it simultaneous movement withthe controlled thereby for giving an audible signal, means independent of the platen for restoring the rotary member to a constant position of rest, andv sheet-controlled connecting means between the rotary member and the platen- 21. In atypewriting machine, in combination, a rotary member, a positioning Weight attached thereto and acting rotalively thereon, afbell-striliing mechanism controlled by said'rotary member, and sheet-- controlled connecting means between said member and the platen.

22. In a typeni'riting machine, in combination, the printing types, a platen, and a. sheet-controlled platen-actuated mechanism for bringing a blocking part into the path of the printing types.

in a typewriting machine, in combination, a platen, printing instrumentalities, a part adapted to be brought between the printing instrumentalities and thesheet, and sheet-controlled platen-actuated means for moving the said part into a-position to prevent printing.

24. In a typewriting machine, in combination, typewriter mecl'lanism including a platen, a rotary member supplied With means for returning it to a constant position of rest when released from connection with the platen, means controlled by said member to render a part or parts of said mechanism inoperative, and sheet-controlled means intermediately connecting" the rotary member. with the platen.

In a typewriting machine, in combination, typewriter mechanism including; a platen, a rotary member supplied with means retin'ning it to a constant position of rest when released from connection with the plate'n,means cmitrolled by the rotary memher to render a part or parts of said 1neclianism inoperative when the end of the sheet attains a predetermined distance from the printing point. the said member and means automatically releasing the machine for work, and sheet-controlled means for con nee-ting the rotary member with the platen.

26. In a typewriting machine, in combi nation, printing instriunentalities, a platen. a rotary member, means for giving the said member a constant starting position, sheetcontrolled means for giving the said memher sinniltaneous movement with the platen,

and a part adapted to be interposed between the printing instrumentalities and the sheet through the action of the said member.

27. In a typewriting machine, in combination, a carriage, a platen, a rotary member, sheet-controlled means for cotirdinating the position of the said member with the position of the sl1eetend, including means for giving the member a constant starting position and means for giving itsimultaneous movement with the platen therefrom, the typcbars. and a device on the carriage and controlled by the said membel for preventing the use of the type-bars in printin 2b. in a typen-riting machine. in combination. a *arriage, a platen. printing instrir mentalities, a nmrable part on the carriage, and means brought into action by the revolving movement of the platen for moving the said part into the path of the printinginstrumentalities.

29. In a typewriting machine, in combination, a platen, the type-bars, a bail-piece, and sheet-controlled platen-actuated means for bringing the bail-piece into the path of the type-bars at a predetermined sheet-p0 sition so as to prevent their use. i

30. In a typewriting machine, in combination, printing instrumentalities, a platen, paperieeler means, an operative member actuated from the platen under the control of said paperieeler means, and a bail-piece through which the use of the printing instrumentalities is prevented under the control of said operati e member and in every position of the carriage.

31. In a tvpewriting machine, in combination. a platen, a paper-feelcr-carrier con uected to move simultaneously with the platen and supplied with paperieeler guides, paper-feelers mo 'able along the said guides, and indices controlled by the said paper-feelers.

32. In a typewritingmachine, in combination. a platen. apart channeled in substantially radial direction relatively to the platen axis and disposed about said axis, paper-feelers movable in the channels in said part, and indicating means controlled by the said paper-feelers.

33. In a typewriting machine, in combination. a platen, paper-feeler guides disposed about the axis of the said platen, paper-feelers movable along the, said guides in sul'istantially radial direction"relative to the said axis, and indicating means controlled by the said paper-feelers.

3%. In a typewritinn" machine, in combination. typewriter mechanism including a platen. a series of radial guides revolving simultaneously with the platen, a series of sheet-controlled projections or teeth n1ov' able along the said guides, and means cooperating with the said teeth to render a part or parts of the saidmechamsm 1nop-' erative.

lVILLlAM J. NElDltG. Witnesses: v

MARY .fiunns Lnrniaor, HENRY B. Li'i'rHRoP.

'tfiopiea of this patent may be obtained for five cents each, by addressingthe fiommissioner of ltatcnts,

- Washington, D. 6. 

